Tourmaline is a semi-precious mineral stone that comes in an array of colors, ranging from black to bluish-black to deep brown, and even vibrant hues like blue, green, red, and yellow. One of its most distinctive features is its ability to display multiple colors in a single crystal, famously known as the watermelon tourmaline because it resembles the fruit with its green exterior and red interior. Additionally, tourmaline is recognized for its triangular cross-section and striated facets. It’s also quite durable, which makes it suitable for everyday jewelry wear.
